labrum
The uppermost of the mouthparts (trophi) of a typical insect, such as a cockroach. Typically resembles an upper lip and forms part of the roof of the mouth in such insects.
Noun
- The uppermost of the mouthparts (trophi) of a typical insect, such as a cockroach. Typically resembles an upper lip and forms part of the roof of the mouth in such insects.
- Any of several lip-like projections.
- A large basin of warm water, with an overhanging lip, in a Roman bath.
Origin
From Latin labrum (“lip”).